CN212241390U

CN212241390U - Saw blade

Info

Publication number: CN212241390U
Application number: CN202020637336.XU
Authority: CN
Inventors: 古晓丰; 马翔
Original assignee: Huizhou Huiliu Industrial Co ltd
Current assignee: Huizhou Huiliu Industrial Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-12-29
Anticipated expiration: 2030-04-24

Abstract

The utility model relates to a saw bit cutting technical field, in particular to saw bit. Including the circular shape saw bit body, it has the sawtooth to be the circumference array on saw bit body edge, through set up more sawtooth quantity on the saw bit body, improve the cutting force of sawtooth, and then the turn-ups when avoiding cutting the japanning timber, through setting up main smear metal face and its contained angle in the crossing tangential direction of saw bit body, it is parallel with main smear metal face to set up the cutting edge on the main smear metal face simultaneously, improve the punching force of sawtooth when cutting timber, avoid causing deckle edge to timber, and be formed with the chip groove between the sawtooth, reach the effect of removing the saw-dust, set for suitable back smear metal face angle simultaneously, the leading-in chip groove of saw-dust that produces after the guide cutting, the accumulation of having avoided the saw-dust causes the timber turn-ups.

Description

Saw blade

Technical Field

The utility model relates to a saw bit cutting technical field, in particular to saw bit.

Background

In the wood working process, a saw blade is generally installed through a wood cutting device, and the wood is cut by the saw blade, so that the wood with larger size can be cut into smaller size according to the requirement.

However, when the wood with paint sprayed on the surface is cut, the general saw blade with few teeth easily turns the wood to be flanged in the cutting process, which results in damaging the paint on the surface of the wood, while the saw blade with many teeth has improper angles of the main cutting surface of the saw teeth, which easily results in burrs generated on the wood sprayed with the paint during cutting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a saw bit adopts the utility model provides a technical scheme has solved the sawtooth number of current saw bit and has been few, and cutting angle is improper, leads to can make the timber turn-ups produce deckle edge in the process of cutting, destroys the problem of the paint on timber surface.

In order to solve the technical problem, the utility model provides a saw blade, which comprises a circular saw blade body (10); saw teeth (20) are arranged on the edge of the saw blade body (10) in a circumferential array; a chip groove (30) is formed between any two adjacent saw teeth (20) on the saw blade body (10); the radius R1 of the chip groove is 1-1.5 mm; the serration (20) comprises a main chip surface (22) and a back chip surface, a cutting edge (21) being formed on the tip of the main chip surface (22); the included angle alpha between the main cutting surface (22) and the tangent direction of the main cutting surface intersected with the saw blade body (10) is 65-70 degrees; the thickness of the saw blade body (10) is 2-2.5mm, and the diameter D1 is 255-265 mm; the outer diameter D2 of sawtooth is 270 ~ 280mm, and width D is 8.5 ~ 9.5 mm.

Preferably, the back chip surface comprises an upper back chip surface (23) and a lower back chip surface (24); the included angle beta between the upper back chip surface (23) and the main chip surface (22) is 40-45 degrees; the included angle theta between the upper back chip surface (23) and the lower back chip surface (24) is 125-130 degrees.

Preferably, the main chip surface (22) forms a rounding radius R2 of 1.2-1.5mm with the blade body (10).

Preferably, the radius R3 of the fillet formed by the upper back chip surface (23) and the lower back chip surface (24) is 5-6.5 mm.

Preferably, the depth H of the chip groove (30) is 1-1.5 mm.

Preferably, the number of the saw teeth (20) is 96-120.

From the above, use the utility model provides a can obtain following beneficial effect: through set up more sawtooth quantity on the saw bit body, improve the cutting force of sawtooth, and then the turn-ups when avoiding cutting the japanning timber, through setting up main smear metal face and its contained angle in the crossing tangential direction of saw bit body, it is parallel with main smear metal face to set up the cutting edge on the main smear metal face simultaneously, improve the die cutting force of sawtooth when cutting timber, avoid causing deckle edge to timber, and be formed with the chip groove between the sawtooth, reach the effect of chip-removal, set for suitable back smear metal face angle simultaneously, the leading-in chip groove of production saw-dust after the guide cutting, the accumulation of having avoided the saw-dust causes the timber turn-ups.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.

FIG. 1 is a diagram of a saw blade structure according to an embodiment of the present invention;

fig. 2 is a schematic view of a saw tooth angle according to an embodiment of the present invention;

fig. 3 is a sawtooth structure diagram according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to solve the above technical problem, the present embodiment provides a saw blade for cutting the wood coated with paint, as shown in fig. 1, the saw blade includes a circular saw blade body 10, teeth 20 are arranged on the edge of the saw blade body 10 at equal intervals on the circumference, when the number of the teeth 20 is 96-120, the effect of the saw blade on cutting the wood is good, the paint is not easy to be damaged by flanging, and burrs are not easy to be generated, and the number of the teeth 20 provided by the present embodiment is 96.

For this purpose, the diameter D1 of the blade body 10 is 255mm, the maximum outer diameter D2 of the saw blade 20 is 270mm, the thickness of the blade body 10 is 2mm, a mounting shaft for fixing a cutting device is provided at the center of the blade body 10, the inner diameter of the mounting shaft is 40mm, the outer diameter of the mounting hole is 80mm, a main chip surface 22 and a back chip surface are formed on the saw blade 20, and a cutting edge 21 having a cutting surface parallel to the main chip surface 22 is formed at the tip of the main chip surface 22. The cutting edge 21 may be an alloy cutting edge fixedly mounted on the main chip surface 22, so that the strength is high, the cost is high, and an appropriate combination mode can be selected according to the strength of wood, thereby improving the economic benefit.

As shown in fig. 2-3, in order to improve the cutting force of the saw teeth 20 when cutting wood and avoid burring and burring on the wood, the width d of the saw teeth 20 is 9.5mm, the radian of the area covered by the saw teeth 20 at the circle center of the saw blade body 10 is 3.7 °, the angle of the main chip surface 22 has an influence on the cutting force when cutting wood, the included angle α between the main chip surface 22 of the saw teeth 20 and the tangential direction of the saw blade body 10 is 65 °, and the cutting force of the main chip surface 22 of the saw teeth 20 when cutting wood is improved. The radius R2 of the fillet formed by the main chip surface 22 and the blade body 10 is 1.5mm, which improves the strength of the bottom of the saw tooth 20 and makes the saw tooth 20 not easy to crack.

The accumulation of saw-dust that produces in the cutting process can influence the cutting effect of saw bit, for this reason, is formed with the chip groove 30 on saw bit body 10 between arbitrary two adjacent sawtooth 20, and wherein the radius R1 of chip groove 30 is 1.5mm, and chip groove 30 degree of depth H is 1.5mm, reaches the effect of arranging the saw-dust, has avoided the accumulation of saw-dust to cause the timber turn-ups.

Wherein the back chip surface has the function of guiding chips generated after cutting to guide the chips into the chip discharge groove 30. Therefore, the back chip surface comprises an upper back chip surface 23 and a lower back chip surface 24, an included angle beta between the upper back chip surface 23 and the main chip surface 22 is 40 degrees, an included angle theta between the upper back chip surface 23 and the lower back chip surface 24 is 125 degrees, a rounding radius R3 formed by the upper back chip surface 23 and the lower back chip surface 24 is 5mm, and the upper back chip surface 23 and the lower back chip surface 24 are in arc transition, so that the sawdust is easily guided into the chip discharge groove 30.

To sum up, through set up more sawtooth quantity on the saw bit body, improve the cutting force of sawtooth, and then the turn-ups when avoiding cutting the japanning timber, through setting up main smear metal face and its contained angle in the crossing tangential direction of saw bit body, it is parallel with main smear metal face to set up the cutting edge on the main smear metal face simultaneously, improve the die-cutting force of sawtooth when cutting timber, avoid causing deckle edge to timber, and be formed with the chip groove between the sawtooth, reach the effect of removing the saw-dust, set for suitable back smear metal face angle simultaneously, the guide produces the leading-in chip groove of saw-dust after cutting, the accumulation of having avoided the saw-dust causes the timber turn-ups.

Example 2

The present embodiment provides a saw blade for cutting wood coated with paint, as shown in fig. 1, including a circular saw blade body 10, wherein there are saw teeth 20 arranged on the edge of the saw blade body 10 at equal intervals, and the number of the saw teeth 20 provided in the present embodiment is 120.

Therefore, the diameter D1 of the saw blade body 10 is 265mm, the maximum outer diameter D2 of the saw tooth 20 is 280mm, the thickness of the saw blade body 10 is 2mm, a mounting shaft for fixing a cutting device is arranged at the center of the saw blade body 10, the inner diameter of the mounting shaft is 40mm, the outer diameter of a mounting hole is 80mm, a main chip surface 22 and a back chip surface are formed on the saw tooth 20, an included angle alpha between the main chip surface 22 and the tangent direction of the main chip surface intersected with the saw blade body 10 is 70 degrees, and the radius R2 of the fillet formed by the main chip surface 22 and the saw blade body 10 is 1.5 mm.

The accumulation of the wood chips generated during the cutting process affects the cutting effect of the saw blade, and for this reason, a chip discharge groove 30 is formed between any two adjacent saw teeth 20 on the saw blade body 10, wherein the radius R1 of the chip discharge groove 30 is 1.3mm, and the depth H of the chip discharge groove 30 is 1.5mm, so as to achieve the effect of removing the wood chips.

In order to improve the cutting force of the saw teeth 20 during cutting wood and avoid flanging and burrs on the wood, the width d of the saw teeth 20 is 8.5mm, and the radian of the area covered by the saw teeth 20 at the circle center of the saw blade body 10 is 3 degrees. The back chip surface comprises an upper back chip surface 23 and a lower back chip surface 24, an included angle beta between the upper back chip surface 23 and the main chip surface 22 is 45 degrees, an included angle theta between the upper back chip surface 23 and the lower back chip surface 24 is 130 degrees, a radius R3 of a fillet formed by the upper back chip surface 23 and the lower back chip surface 24 is 6.5mm, the upper back chip surface 23 and the lower back chip surface 24 are in arc transition, and the sawdust is easily guided into the chip discharge groove 30.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. A saw blade characterized by: comprises a circular saw blade body (10); saw teeth (20) are arranged on the edge of the saw blade body (10) in a circumferential array; a chip groove (30) is formed between any two adjacent saw teeth (20) on the saw blade body (10); the radius R1 of the chip groove is 1-1.5 mm; the serration (20) comprises a main chip surface (22) and a back chip surface, a cutting edge (21) being formed on the tip of the main chip surface (22); the included angle alpha between the main cutting surface (22) and the tangent direction of the main cutting surface intersected with the saw blade body (10) is 65-70 degrees; the thickness of the saw blade body (10) is 2-2.5mm, and the diameter D1 is 255-265 mm; the outer diameter D2 of sawtooth is 270 ~ 280mm, and width D is 8.5 ~ 9.5 mm.

2. The saw blade of claim 1, wherein: the back chip surfaces comprise an upper back chip surface (23) and a lower back chip surface (24); the included angle beta between the upper back chip surface (23) and the main chip surface (22) is 40-45 degrees; the included angle theta between the upper back chip surface (23) and the lower back chip surface (24) is 125-130 degrees.

3. The saw blade of claim 2, wherein: the main chip surface (22) and the saw blade body (10) form a rounding radius R2 of 1.2-1.5 mm.

4. The saw blade of claim 2, wherein: the radius R3 of a fillet formed by the upper back chip surface (23) and the lower back chip surface (24) is 5-6.5 mm.

5. The saw blade of claim 1, wherein: the depth H of the chip groove (30) is 1-1.5 mm.

6. A saw blade according to any of claims 1 to 5, wherein: the number of the saw teeth (20) is 96-120.